| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | NBT Bank, National Association | Bank | 4 | $395.5M | 29.56% |
| 2 | KeyBank National Association | Bank | 3 | $271.3M | 20.28% |
| 3 | Beginnings Credit Union | Credit union | 2 | $175.2M* | 13.09% |
| 4 | Americu Credit Union | Credit union | 1 | $128.0M* | 9.56% |
| 5 | Tompkins Bank & Trust | Bank | 1 | $97.0M | 7.25% |
| 6 | The First National Bank of Dryden | Bank | 2 | $89.1M | 6.66% |
| 7 | The Summit Federal Credit Union | Credit union | 1 | $83.6M* | 6.25% |
| 8 | Visions Federal Credit Union | Credit union | 1 | $74.3M* | 5.55% |
| 9 | Chemung Canal Trust Company | Bank | 1 | $24.0M | 1.79% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2025 | $1.34B | 9 | 16 | NBT Bank, National Association | 29.6% | 1,718 |
| 2024 | $1.39B | 10 | 18 | NBT Bank, National Association | 26.6% | 1,608 |
| 2023 | $1.48B | 11 | 19 | NBT Bank, National Association | 24.3% | 1,470 |
| 2022 | $1.53B | 11 | 19 | NBT Bank, National Association | 24.1% | 1,458 |
Every institution above links to its profile — ratios, peer medians and this quarter’s change signals. Pro adds the full table, share movement and CSV export.